ETSI TS V (). 1. 3GPP TS version Release Reference. RTS/TSGRvd Keywords. UMTS. Descriptor and Table of Contents (1 of 40) for 3GPP TS – Radio Resource Control (RRC) – Protocol specification. 3GPP TS V (). 2. Release Keywords. UMTS, radio. 3GPP. Postal address. 3GPP support office address. Route des Lucioles.
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Type 14 — PHY information.
There are 15 access slots per two frames and they are spaced chips apart over 2 UMTS frames. Note these comments on the alignment of the scrambling code, from 3GPP Message encoding is ASN.
The transitions to lower energy consuming states occur when inactivity timers trigger. Each slot consists of two parts, a data part to which the RACH transport channel is mapped and a control part that carries Layer 1 control information. The control part consists of 8 known pilot bits to support channel estimation for coherent detection and 2 TFCI bits. Retrieved 10 April In this case, the scrambling code is thus not necessarily applied aligned with the frame boundary of the physical channel to be scrambled.
This TTI length is configured by higher layers. The same scrambling code is used for the message part, but with a code offset. Typically the RACH preamble detection and AICH response is done solely in the physical layer since there is no information or handling needed from the higher layers. This corresponds to a spreading factor of for the message control part.
Type 13 — ANSI system information. From Wikipedia, the free encyclopedia. The UE can start the random-access transmission at the beginning of a number of well-defined time intervals, denoted access slots.
Free Online 3GPP UMTS ASN.1 Messages Decoder
The downlink power level is measured and the initial RACH power 3ggpp is set with the proper margin due to the open-loop inaccuracy. N-1 with a repeat period of 8N, where N is a power of 2. The BCH transport block is always bits, including a header and data fields. Languages Deutsch Svenska Edit links.
There’s an overview of this in 3GPP The best place to see this laid out in a clear way is in 3GPP The preamble is retransmitted in the next available access slot.
3GPP Specification #: version – ASN.1 code –
Download in other formats: The data and control parts are transmitted in parallel. These chips are formed into QPSK symbols and prepared for transmission with the root-raised-cosine channel filter.
Type 12 — Measurement control 3gp for connected mode, 25.331 different from SIB You can get a “clean” copy of that ASN. This article is based on material taken from the Free On-line Dictionary of Computing prior to 1 November and incorporated under the “relicensing” terms of the GFDLversion 1.
All of the parameters are powers of 2, but the repeat periods can be set independently for each SIB type. The fact that SIBs can span multiple transport frames, or be combined into shared transport frames, further 25.3331 the set of scheduling possibilities.
UMTS ASN1 RRC description
The purpose of this procedure is to establish the appropriate uplink power level for the UE, since CDMA is exquisitely sensitive to variations in relative received power. RACH transmissions from the user consists of two parts: Each preamble is of length chips and consists of repetitions of a signature of length 16 chips.
Does that mean the whole message is optional? The operation of the RRC is guided by a state machine which defines certain specific states that a UE may be present in. List of mobile phone generations.
More details are in 3GPP Radio Transmission These chips are formed into QPSK symbols and prepared for transmission with the root-raised-cosine channel filter. The 3fpp selects the scrambling code number by adding the code number of the downlink primary scrambling code and the preamble scrambling code number from SIB5. Message Formation and ASN. The simplest way to schedule the messages would be: Views Read Edit View history.